package cn.edu.hunau.oop.day04.demo;

/**
 * @author hb
 * @date 2025-08-07 09:28:45
 */
public class AbstractTest {

    public void test01(){

    }
}

abstract class Moo{
    public Moo(){

    }
     abstract int add(int a ,int b);
}

class Noo extends Moo{

    @Override
    int add(int a, int b) {
        return 0;
    }
}